package demo1;

class MyThread extends Thread{
    @Override
    public void run() {
        System.out.println("hello thread!");
        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            throw new RuntimeException(e);
        }
    }
}
@SuppressWarnings({"all"})
public class Test {
    public static void main(String[] args) throws InterruptedException {
        Thread thread = new MyThread();
        thread.start();
        while(true){
            System.out.println("hello main");
            Thread.sleep(1000);
        }
    }
}
